以柠檬酸二氢胆碱为基础的淀粉增塑深度共晶体系

IF 0.7 4区工程技术 Q4 CHEMISTRY, APPLIED

Polish Journal of Chemical Technology Pub Date : 2022-09-01 DOI:10.2478/pjct-2022-0022

K. Wilpiszewska, Dorota Skowrońska

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引用次数: 0

摘要

摘要以柠檬酸二氢胆碱和甘油或尿素为基料，研究了双组分深度共晶溶剂(DES)作为淀粉增塑剂的性能。采用热分析技术对淀粉/DES体系的性能进行了表征。x射线衍射测量显示结晶度明显下降，表明使用的DES具有穿透马铃薯淀粉有序区域的能力，这是真正增塑剂的必要特征。然而，差示扫描量热和动态热分析结果令人惊讶地显示，淀粉材料的Tg增加表明在高温下化学交联。以柠檬酸二氢胆碱为基料的共晶溶剂既可作为增塑剂，又可作为交联剂。

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Starch plasticization with choline dihydrogencitrate-based deep eutectic system

Abstract Two-component deep eutectic solvents (DES) based on choline dihydrogencitrate and glycerol or urea were tested as starch plasticizers. Thermal analysis techniques were applied to characterize the properties of starch/DES systems. The X-ray diffractometry measurements revealed a significant decrease in crystallinity indicating that used DES exhibited the ability to penetrate the ordered regions of potato starch, which is a necessary feature of a true plasticizer. However, the differential scanning calorimetry and dynamic thermal analysis results surprisingly showed an increase of Tg of starch materials indicating chemical crosslinking at elevated temperature. The eutectic solvents based on choline dihydrogencitrate could act as a plasticizer and a simultaneously crosslinking agent.

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来源期刊

Polish Journal of Chemical Technology CHEMISTRY, APPLIED-ENGINEERING, CHEMICAL

CiteScore

1.70

自引率

10.00%

发文量

审稿时长

4.5 months

期刊介绍： Polish Journal of Chemical Technology is a peer-reviewed, international journal devoted to fundamental and applied chemistry, as well as chemical engineering and biotechnology research. It has a very broad scope but favors interdisciplinary research that bring chemical technology together with other disciplines. All authors receive very fast and comprehensive peer-review. Additionally, every published article is promoted to researchers working in the same field.